Abstract: A method includes: determining a set of all possible configurations of occupation or non-occupation of a set of transmission bands, defined as a set of possible vectors; building a matrix from a stacking of all the possible vectors; obtaining measurements of occupation of at least a part of the set of channels, at respective time instants; and computing probabilities using a channel transition function so as to determine, for each transmission band, an estimated activation rate, on the basis of the measurements. The estimated activation rate corresponds to an occupation rate of a transmission band by an interferer within the given observation time window, and the probabilities computations include an iterative resolution of a non-linear optimization problem with a constraint derived from the Gibbs' inequality.

Abstract: Examples include a method to communicate between a first and a second synchronized mobile devices, the method comprising sensing a plurality of preconfigured radio resources and identifying for each sensed preconfigured radio resource, whether it is occupied. The method also comprises receiving an indication of future occupied preconfigured radio resource utilization by further mobile devices in the spatial domain, and selecting a specific pre-configured radio resource reducing or preventing communication collisions in the spatial domain. The method further comprises the first and the second mobile devices communicating using the selected specific preconfigured radio resource.

Abstract: A method for estimating a performance of a wireless communication network for a given time-frequency resource allocation is disclosed. The communications in said wireless communication network are subject to interferences whose activation is modeled by a binary random variable bt indicating whether an interferer is active or not at a time instant t, the discrete-time stochastic process {bt}t?[??;+?] being modelled by a Markov chain with memory M. A frequency channel sequence associated with at least one set of consecutive observations of interference activation is determined from a frequency hopping sequence. The Markov chain associated with the determined frequency channel sequence is then identified and a set of probabilities of the identified Markov chain is updated according to the obtained at least one set of consecutive observations of interference activation.

Abstract: The disclosure relates to characterizing radiofrequency interference caused by a plurality of sources. At least one observing device is used for scanning successively a plurality of radiofrequency bands for performing interference measurements in the plurality of radiofrequency bands, in different space locations, and at different time instants, and provides observations at successive time instants of a current position of the observing device, and a received interference power in an observed frequency band. For each interference source and each observation, a likelihood probability to attribute one observation to one interference source is computed. This likelihood probability computations are used for assigning each of said observations to one interference source. More particularly, the likelihood probability computing is based on both frequency observation and interference power observation.

Abstract: A value of a first figure of merit representative of routing performance throughout the multi-hop network is obtained. Independently of the values of the first figure of merit, a value of a second figure of merit representative of transmission performance between the base station and the multi-hop network for each candidate configuration of transmission between the base station and the entry points of the multi-hop network is computed. Values of a third figure of merit representative of a trade-off between routing performance throughout the multi-hop network and transmission performance between the base station and the multi-hop network is then computed by combining values of the first figure of merit and of the second figure of merit. Then, the candidate configuration which shows the best value of the third figure of merit is selected to perform the transmission of data.

Abstract: The invention relates to a method for optimizing a capacity of a communication channel in a communication system comprising at least a transmitter (10), a receiver (11), and the communication channel (12) between the transmitter and the receiver. The transmitter (10) uses a finite set of symbols ?={?1, . . . , ?N} having respective positions on a constellation, to transmit a message including at least one symbol on said communication channel (11). The communication channel (11) is characterized by a conditional probability distribution ?Y|X(y|x), where y is the symbol received at the receiver (12) while x is the symbol transmitted by the transmitter. More particularly, the conditional probability distribution ?Y|X(y|x) is obtained, for each possible transmitted symbol x, by a mixture model using probability distributions represented by exponential functions.

Abstract: The disclosure relates to a method for scheduling TSN flows in a communication system within a time-sensitive network. The method is implemented at a central network configuration entity. Assistance information relating to a time granularity of transmission opportunities within a radio frame is obtained from at least one TSN bridge. Based on the obtained assistance information, a plurality of TSN flows is scheduled by computing time sequences of said TSN flows down to said time granularity. The disclosure further relates to a corresponding communication system and a corresponding central network configuration entity.

Abstract: Example implementations relate to a method for synchronizing a specific node connected to a plurality of other nodes. The method comprises receiving a respective synchronization quality value for a transmitting other node. The method also comprises measuring a respective propagation medium quality value with the transmitting other node. The method further comprises updating a specific synchronization reference of the specific node, whereby the updating comprises assigning to a respective contribution of the transmitting other node a respective weight of the transmitting other node, the respective weight being a function of the respective synchronization quality value of the transmitting other node and of the respective propagation medium quality value with the transmitting other node. The method also comprises revising a specific synchronization quality value and emitting to a receiving other node the revised specific synchronization quality value.

Abstract: Method implemented by a device for receiving synchronization data in a device-to-device communication system, said method comprising: receiving a first synchronization signal and a first information associated to a first initial synchronization source, such as the first synchronization signal is either an initial synchronization signal emitted by the first initial synchronization source or a synchronization signal emitted by another device which is synchronized based on the first initial synchronization sources; receiving a second synchronization signal and a second information associated to a second initial synchronization source, such as the second synchronization signal is either an initial synchronization signal emitted by the second initial synchronization source or a synchronization signal emitted by another device which is synchronized based on the second initial synchronization sources.

Abstract: Examples include a method for operating a specific mobile device moving from a source cell to a destination cell. The method comprises using a source sidelink managed by a source base station, whereby the specific and following mobile devices are located within the source cell. The method also comprises switching from the source sidelink to a fallback link, the fallback link resources being managed independently from any base station. The method further comprises switching from the fallback link to a destination sidelink managed by a destination base station, whereby the specific device and the following device are located within the destination cell.

Abstract: The invention relates to a method of massive MIMO communication, comprising: —forming transmission beam set (?), by a base station (BS), with privileged channel directions; —designing additional beam set (?) for optimizing the transmission beam set, so as to detect channel direction change outside the privileged channel directions.

Abstract: The disclosure relates to a method for scheduling TSN flows in a communication system within a time-sensitive network. The method is implemented at a central network configuration entity. Assistance information relating to a time granularity of transmission opportunities within a radio frame is obtained from at least one TSN bridge. Based on the obtained assistance information, a plurality of TSN flows is scheduled by computing time sequences of said TSN flows down to said time granularity. The disclosure further relates to a corresponding communication system and a corresponding central network configuration entity.

Abstract: The present invention relates to a method implemented by a user equipment to determine a value to be used as a timing advance in a target cell in a network comprising a satellite communication network, said method comprising: determining the value to be used as a timing advance in a target cell, before the user equipment transmits a first signal to a target base station, based on: a data related to a timing advance in a source cell, a first parameter, said first parameter being determined by the user equipment, and a second parameter, said second parameter being specific to a couple of cells formed by the source cell and the target cell.

Abstract: The disclosure relates to a method for calculating capabilities of a WB in a communication system within a TSN network. The WB comprises at least a UPF, a BS and a UE. The UPF comprises at least one NW port enabling communication between said BS and a first subnetwork. The UE is wirelessly connected, within the TSN network, to said BS, and comprises a DS port enabling communication with a second subnetwork. The method is performed at the WB and comprises estimating a performance capacity of the wireless connection between the BS and the UE based on information related to an intended network usage for time-sensitive communication at the WB, and calculating the TSN capabilities of the WB corresponding to the estimated performance capacity. The disclosure further relates to a corresponding communication system.

Abstract: Obstacle detection enhancement data are transmitted from a server to at least one moving conveyance embedding an obstacle detection system and an on-board wireless radio unit communicating with the server via wireless link. To do so, downlink transmission resources are allocated to each on-board wireless radio unit in a transmission cycle Cn, by optimizing the difference between a distance travelled by the moving conveyance during a transmission cycle and a distance covered by the obstacle detection enhancement data made available to the obstacle detection system at a next transmission cycle Cn+1, wherein the volume of obstacle detection enhancement data expected to be transmitted during the transmission cycle Cn is determined from volume-to-distance ratio information bk stored in a database and from actual quality of the wireless link.

Abstract: The present disclosure relates to a method (50) for transmitting a data stream from a transmitting device (30) to a receiving device (40), the data stream comprising m data sub-streams, said method (50) comprising: encoding (S51) the data sub-streams with respective polar codes, such as to produce m polar-encoded data sub-streams, modulating (S52) the m polar-encoded data sub-streams onto symbols of a multilevel modulation comprising m levels defining 2m different symbols, such as to produce a symbol stream, transmitting (S53) the symbol stream to the receiving device (40), wherein the 2m symbols of the multilevel modulation are distributed in the complex plane such that they are regularly spaced along the real axis and the complex axis by a spacing factor K, the predetermined labeling function Z being such that ?(Z)<1.7m×(0.0425×m?0.

Abstract: A method implemented by a first device to share at least one resource element within a wireless communication network, the resource element belonging to a first set of radio resources allocated to the first device within a resource pool, the first device using a device-to-device communication within the wireless communication network, and wherein the first device emits, through the device-to-device communication, an indication that the resource element is available for sharing.

Abstract: Examples include a method for providing sidelink resources to a plurality of mobile devices comprising a specific mobile device. The method comprises providing source sidelink resources to the specific mobile device. The method also comprises receiving an indication that the specific mobile device is moving from the coverage of a source cell to the coverage of a destination cell. The method further comprises negotiating, by a source base station, common sidelink special resources with a destination base station, whereby the source and destination base stations have some common resources. The method also comprises reconfiguring the sidelink resources provided to the specific mobile device from the source sidelink resources to the common sidelink special resources and triggering a handover of the specific mobile device from the source base station to the destination base station.

Abstract: The invention relates to a method to relay a vulnerable road user, VRU, application server 20 for updating a vulnerable road user parameter P1, P2, P3 of a VRU corresponding to a first user equipment, UE, in a vehicle-to-everything, V2X, communication system, comprising: receiving from the VRU application server by a second UE a first message including information related to the VRU parameter of the first UE, said second UE corresponding to a vehicle and being in the V2X communication system; transmitting by the second UE to the first UE a second message including the information related to the VRU parameter via a device to device communication; and receiving by the second UE from the first UE a third message including information related to a value of the VRU parameter of the first UE.

Abstract: A method implemented by a user equipment to access a satellite network, at least one satellite of the satellite network being in movement relatively to Earth, the satellite network deploying radiofrequency satellite beams, wherein the user equipment: receives through at least a first satellite beam data of assistance information regarding at least current and future satellite beams of the network, interprets the data of assistance information to anticipate: connection conditions through the first satellite beam, and connection conditions through at least one second satellite beam, different from the first satellite beam, decides the access to the satellite network through a satellite beam among the first satellite beam and the second satellite beam, selected on the basis of at least the connection conditions through the first and second satellite beams, and implements a RACH procedure through the selected satellite beam.